Ruler



FIG. 1 is a perspective view of the ruler showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front view thereof, the opposite rear view being identical; and,

FIG. 5 is an enlarged right side view thereof, the left side view being identical. 

The ornamental design for a ruler, as shown and described. 